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<a href="morton_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (c) 2010-2011, NVIDIA Corporation</span>
<a name="l00003"></a>00003 <span class="comment"> * All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00006"></a>00006 <span class="comment"> * modification, are permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"> *   * Redistributions of source code must retain the above copyright</span>
<a name="l00008"></a>00008 <span class="comment"> *     notice, this list of conditions and the following disclaimer.</span>
<a name="l00009"></a>00009 <span class="comment"> *   * Redistributions in binary form must reproduce the above copyright</span>
<a name="l00010"></a>00010 <span class="comment"> *     notice, this list of conditions and the following disclaimer in the</span>
<a name="l00011"></a>00011 <span class="comment"> *     documentation and/or other materials provided with the distribution.</span>
<a name="l00012"></a>00012 <span class="comment"> *   * Neither the name of NVIDIA Corporation nor the</span>
<a name="l00013"></a>00013 <span class="comment"> *     names of its contributors may be used to endorse or promote products</span>
<a name="l00014"></a>00014 <span class="comment"> *     derived from this software without specific prior written permission.</span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND</span>
<a name="l00017"></a>00017 <span class="comment"> * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED</span>
<a name="l00018"></a>00018 <span class="comment"> * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE</span>
<a name="l00019"></a>00019 <span class="comment"> * DISCLAIMED. IN NO EVENT SHALL &lt;COPYRIGHT HOLDER&gt; BE LIABLE FOR ANY</span>
<a name="l00020"></a>00020 <span class="comment"> * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span>
<a name="l00021"></a>00021 <span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span>
<a name="l00022"></a>00022 <span class="comment"> * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND</span>
<a name="l00023"></a>00023 <span class="comment"> * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span>
<a name="l00024"></a>00024 <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00025"></a>00025 <span class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00026"></a>00026 <span class="comment"> */</span>
<a name="l00027"></a>00027 
<a name="l00032"></a>00032 <span class="preprocessor">#pragma once</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include &lt;nih/basic/types.h&gt;</span>
<a name="l00035"></a>00035 
<a name="l00036"></a>00036 <span class="keyword">namespace </span>nih {
<a name="l00037"></a>00037 
<a name="l00043"></a>00043 FORCE_INLINE NIH_HOST_DEVICE uint32 morton_code(
<a name="l00044"></a>00044     uint32 x,
<a name="l00045"></a>00045     uint32 y,
<a name="l00046"></a>00046     uint32 z)
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048     x = (x | (x &lt;&lt; 16)) &amp; 0x030000FF; 
<a name="l00049"></a>00049     x = (x | (x &lt;&lt;  8)) &amp; 0x0300F00F; 
<a name="l00050"></a>00050     x = (x | (x &lt;&lt;  4)) &amp; 0x030C30C3; 
<a name="l00051"></a>00051     x = (x | (x &lt;&lt;  2)) &amp; 0x09249249; 
<a name="l00052"></a>00052 
<a name="l00053"></a>00053     y = (y | (y &lt;&lt; 16)) &amp; 0x030000FF; 
<a name="l00054"></a>00054     y = (y | (y &lt;&lt;  8)) &amp; 0x0300F00F; 
<a name="l00055"></a>00055     y = (y | (y &lt;&lt;  4)) &amp; 0x030C30C3; 
<a name="l00056"></a>00056     y = (y | (y &lt;&lt;  2)) &amp; 0x09249249; 
<a name="l00057"></a>00057 
<a name="l00058"></a>00058     z = (z | (z &lt;&lt; 16)) &amp; 0x030000FF; 
<a name="l00059"></a>00059     z = (z | (z &lt;&lt;  8)) &amp; 0x0300F00F; 
<a name="l00060"></a>00060     z = (z | (z &lt;&lt;  4)) &amp; 0x030C30C3; 
<a name="l00061"></a>00061     z = (z | (z &lt;&lt;  2)) &amp; 0x09249249; 
<a name="l00062"></a>00062 
<a name="l00063"></a>00063     <span class="keywordflow">return</span> x | (y &lt;&lt; 1) | (z &lt;&lt; 2);
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 
<a name="l00071"></a>00071 FORCE_INLINE NIH_HOST_DEVICE uint64 morton_code60(
<a name="l00072"></a>00072     uint32 x,
<a name="l00073"></a>00073     uint32 y,
<a name="l00074"></a>00074     uint32 z)
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076     uint32 lo_x = x &amp; 1023u;
<a name="l00077"></a>00077     uint32 lo_y = y &amp; 1023u;
<a name="l00078"></a>00078     uint32 lo_z = z &amp; 1023u;
<a name="l00079"></a>00079     uint32 hi_x = x &gt;&gt; 10u;
<a name="l00080"></a>00080     uint32 hi_y = y &gt;&gt; 10u;
<a name="l00081"></a>00081     uint32 hi_z = z &gt;&gt; 10u;
<a name="l00082"></a>00082 
<a name="l00083"></a>00083     <span class="keywordflow">return</span>
<a name="l00084"></a>00084         (uint64(morton_code( hi_x, hi_y, hi_z )) &lt;&lt; 30) |
<a name="l00085"></a>00085          uint64(morton_code( lo_x, lo_y, lo_z ));
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087 
<a name="l00088"></a>00088 
<a name="l00091"></a>00091 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Integer&gt;
<a name="l00092"></a><a class="code" href="structnih_1_1morton__functor.html">00092</a> <span class="keyword">struct </span><a class="code" href="structnih_1_1morton__functor.html">morton_functor</a> {};
<a name="l00093"></a>00093 
<a name="l00096"></a>00096 <span class="keyword">template</span> &lt;&gt;
<a name="l00097"></a><a class="code" href="structnih_1_1morton__functor_3_01uint32_01_4.html">00097</a> <span class="keyword">struct </span><a class="code" href="structnih_1_1morton__functor.html">morton_functor</a>&lt;uint32&gt;
<a name="l00098"></a>00098 {
<a name="l00102"></a><a class="code" href="structnih_1_1morton__functor_3_01uint32_01_4.html#a29085dec57c46e4a283003ab16d86d53">00102</a>     NIH_HOST_DEVICE <a class="code" href="structnih_1_1morton__functor.html">morton_functor</a>(<span class="keyword">const</span> <a class="code" href="structnih_1_1_bbox.html">Bbox3f</a>&amp; bbox) :
<a name="l00103"></a>00103         m_base( bbox[0] ),
<a name="l00104"></a>00104         m_inv(
<a name="l00105"></a>00105             1.0f / (bbox[1][0] - bbox[0][0]),
<a name="l00106"></a>00106             1.0f / (bbox[1][1] - bbox[0][1]),
<a name="l00107"></a>00107             1.0f / (bbox[1][2] - bbox[0][2]) )
<a name="l00108"></a>00108     {}
<a name="l00109"></a>00109 
<a name="l00110"></a>00110     <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Po<span class="keywordtype">int</span>_type&gt;
<a name="l00111"></a>00111     FORCE_INLINE NIH_HOST_DEVICE uint32 operator() (<span class="keyword">const</span> Point_type point)<span class="keyword"> const</span>
<a name="l00112"></a>00112 <span class="keyword">    </span>{
<a name="l00113"></a>00113         uint32 x = quantize( (point[0] - m_base[0]) * m_inv[0], 1024u );
<a name="l00114"></a>00114         uint32 y = quantize( (point[1] - m_base[1]) * m_inv[1], 1024u );
<a name="l00115"></a>00115         uint32 z = quantize( (point[2] - m_base[2]) * m_inv[2], 1024u );
<a name="l00116"></a>00116 
<a name="l00117"></a>00117         <span class="keywordflow">return</span> morton_code( x, y, z );
<a name="l00118"></a>00118     }
<a name="l00119"></a>00119 
<a name="l00120"></a>00120     <span class="keyword">const</span> Vector3f m_base;
<a name="l00121"></a>00121     <span class="keyword">const</span> Vector3f m_inv;
<a name="l00122"></a>00122 };
<a name="l00123"></a>00123 
<a name="l00126"></a>00126 <span class="keyword">template</span> &lt;&gt;
<a name="l00127"></a><a class="code" href="structnih_1_1morton__functor_3_01uint64_01_4.html">00127</a> <span class="keyword">struct </span><a class="code" href="structnih_1_1morton__functor.html">morton_functor</a>&lt;uint64&gt;
<a name="l00128"></a>00128 {
<a name="l00132"></a><a class="code" href="structnih_1_1morton__functor_3_01uint64_01_4.html#a9344bbcf4abd747f4543ecb7a86e5b1e">00132</a>     NIH_HOST_DEVICE <a class="code" href="structnih_1_1morton__functor.html">morton_functor</a>(<span class="keyword">const</span> <a class="code" href="structnih_1_1_bbox.html">Bbox3f</a>&amp; bbox) :
<a name="l00133"></a>00133         m_base( bbox[0] ),
<a name="l00134"></a>00134         m_inv(
<a name="l00135"></a>00135             1.0f / (bbox[1][0] - bbox[0][0]),
<a name="l00136"></a>00136             1.0f / (bbox[1][1] - bbox[0][1]),
<a name="l00137"></a>00137             1.0f / (bbox[1][2] - bbox[0][2]) )
<a name="l00138"></a>00138     {}
<a name="l00139"></a>00139 
<a name="l00140"></a>00140     <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Po<span class="keywordtype">int</span>_type&gt;
<a name="l00141"></a>00141     FORCE_INLINE NIH_HOST_DEVICE uint64 operator() (<span class="keyword">const</span> Point_type point)<span class="keyword"> const</span>
<a name="l00142"></a>00142 <span class="keyword">    </span>{
<a name="l00143"></a>00143         uint32 x = quantize( (point[0] - m_base[0]) * m_inv[0], 1u &lt;&lt; 20 );
<a name="l00144"></a>00144         uint32 y = quantize( (point[1] - m_base[1]) * m_inv[1], 1u &lt;&lt; 20 );
<a name="l00145"></a>00145         uint32 z = quantize( (point[2] - m_base[2]) * m_inv[2], 1u &lt;&lt; 20 );
<a name="l00146"></a>00146 
<a name="l00147"></a>00147         <span class="keywordflow">return</span> morton_code60( x, y, z );
<a name="l00148"></a>00148     }
<a name="l00149"></a>00149 
<a name="l00150"></a>00150     <span class="keyword">const</span> Vector3f m_base;
<a name="l00151"></a>00151     <span class="keyword">const</span> Vector3f m_inv;
<a name="l00152"></a>00152 };
<a name="l00153"></a>00153 
<a name="l00154"></a>00154 } <span class="comment">// namespace nih</span>
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